Application of Mobile Agent in Wide Area Pervasive Computing System

Current pervasive computing systems always focus on the local area network (LAN) environment, for example, an intelligent room or intelligent building. This paper uses mobile agent to implement the resource and service migration mechanism, and make the pervasive computing system adaptable to work in wide area networks (WAN). The work in this paper includes three parts: (1) introducing mobile agent into wide area pervasive computing system and presenting The Mobile Agent based Wide Area Pervasive Computing System (WAPCS). WAPCS uses mobile agents as the underlying facility to migrate the resources and services to the user´s environment in WAN; (2) presenting a high performance service migrating mechanism based mobile agent for WAPCS. This mechanism can effectively avoid the heavy communication overhead in WAN, and be fit to work in WAPCS; (3) presenting a novel service migrating mechanism for WAPCS: divided-domain and convergent resource migrating mechanism (DCRM). DCRM uses mobile agent to effectively reduce the system overhead for service migration in WAPCS.